Home / 156,427.02-215,870.85-84,806.88

Finding the Fourth Proportional to 156,427.02, 215,870.85 and 84,806.88

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Solution

The fourth proportional to 156,427.02, 215,870.85 and 84,806.88 is: 117,034.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,427.02 : 215,870.85 = 84,806.88 : x
  2. Step 2: Convert to fraction form
    156,427.02/215,870.85 = 84,806.88/x
  3. Step 3: Cross multiply
    156,427.02x = 215,870.85 × 84,806.88
  4. Step 4: Simplify right side
    156,427.02x = 18,307,333,271.45
  5. Step 5: Solve for x
    x = 18,307,333,271.45/156,427.02
  6. Step 6: Final answer
    x = 117,034.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.